@Mumblez: Now we just need to tone down the sniper spam. Seriously, I've seen servers where over half of each team is snipers just camping from the other side of the map. Hacks may or may not be involved.
Engie nerfs? It was mostly buffs, they only balanced the rescue ranger - wrangler combo, by making it the wrangler basicly useless and removing some of the sentrie bullet resistance,but other than that setting up nests is super fast, and the minis build extremely fast if you hit them 2 times.